The utility model discloses a general -purpose audio frequency operational trials ware, it includes input, output and disconnection loopback switch, directly links cross bar switch and audio frequency test switch, and the input includes RJ -11 and binding post, and the output includes RJ -11 and DB -9 interface, directly links the cross bar switch and connects between input and output, and disconnection loopback switch is directly linking between cross bar switch and the output by another line connection, and audio frequency test switch one end is connected at disconnection loopback switch with on directly linking the circuit between the cross bar switch, and the other end is connected on directly linking the circuit between cross bar switch and the output. The utility model discloses can realize the professional testing capabilities of multiple electric power audio frequency, solve different manufacturer's voice distribution frame is incompatible from one another simultaneously, the different scheduling problems of different professional required test equipment, the utility model discloses also simplify the test flow, promoted test of communication audio channel and the on -the -spot work efficiency of fault finding by a wide margin.